Launch a web browser and navigate to the Microsoft Office for Mac page of the Microsoft website.In this case, updating may quickly solve the problem. MacOS is regularly updated to keep up with improvements and new features.If the Excel app on your Mac is missing an essential update, it may have become incompatible with the OS, resulting in the damaged or incomplete Excel message. If it does, then check if clearing out the start-up items of your Mac solves the problem. Moreover, check if booting your Mac into the Safe Mode clears out the issue.

So, what should you do if Excel is damaged or incomplete? You can perform the undermentioned solutions but before that, check if Excel can successfully be launched from the Applications folder (not from a shortcut or a file).

This corrupt installation of Excel may cause the damaged or incomplete error message at hand.

Corrupt Installation of the Microsoft Excel App: Numerous different reasons can cause corruption of a perfectly working Excel installation like a poorly applied previous system or Office update etc.

If macOS itself is missing some updates, it may conflict with the Excel app.

Outdated macOS of Your System: Excel along with other Office apps is continuously updated to meet up the ever-evolving technological improvements.

If this cache folder on your Mac has become corrupt (due to a power failure, etc.), then this cache corruption can stop Excel from launching normally on your Mac.

Corrupt Cache of the Excel App: Microsoft Excel (like other apps on your Mac) uses a cache to pace up its processes.

If your Excel app is missing an essential update, it may not be compatible with the updated version of macOS, which may lead to the error at hand.

Outdated Excel App: macOS is updated regularly to catch up with the enhancements of technology.

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